base::Bind: Remove CancelableTask and ScopedTaskRunner.

base/task.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/task.h"
 
 Task::Task() {
 }
 
 Task::~Task() {
 }
 
-CancelableTask::CancelableTask() {
-}
-
-CancelableTask::~CancelableTask() {
-}
-
 namespace base {
 
-ScopedTaskRunner::ScopedTaskRunner(Task* task) : task_(task) {
-}
-
-ScopedTaskRunner::~ScopedTaskRunner() {
-  if (task_) {
-    task_->Run();
-    delete task_;
-  }
-}
-
-Task* ScopedTaskRunner::Release() {
-  Task* tmp = task_;
-  task_ = NULL;
-  return tmp;
-}
-
 ScopedClosureRunner::ScopedClosureRunner(const Closure& closure)
     : closure_(closure) {
 }
 
 ScopedClosureRunner::~ScopedClosureRunner() {
   if (!closure_.is_null())
     closure_.Run();
 }
 
 Closure ScopedClosureRunner::Release() {
@@ skipping 25 matching lines @@
   delete task_;
   task_ = NULL;
 }
 
 // Don't leak tasks by default.
 bool TaskClosureAdapter::kTaskLeakingDefault = false;
 
 }  // namespace subtle
 
 }  // namespace base